Ground-auger anchor



UNITED STATES PATENT OEEICE.

HENRY BOEHMKE AND GERHARD BOHLKEN, OF CLEVELAND, OHIO. 'Y

GROUND-Aucas ANCI-loa.

SPEC'IFICATION forming part of Letters Patent N o. 315,593, dated April 14,l 1885.

' Application ined February 19, 1885 (No model.)

To a/ZZ whom it may concern:

Be it known that we, HENRY BOEHMKE and GERHARD BOHLKEN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Ground-Auger Anchors, of which the following is a specification.

This invention relates to an anchor to be placed in the ground for the purpose of securing posts, braces, guys, and guy-ropes, or stone bases; and it consists of a pointed pin or spike provided with a gimlet-pointed screw at the lower` extremity, and also having a short distance above said gimlet-screw a spiral blade or wings which will work their way into the ground, following said gimlet-screw. To the top ofthe pin or spike is attached a swivel- 1 loop, to which chains or cords may be attached for securing guy ropes or braces, or the swivelloop may be dispensed with and the upper end of the pin secured into a hole in the central part or other portion of bases or footings for anchoring them down.

In the accompanying drawing, the figure is a side elevation of the aforesaid anchor as represented inthe ground and provided with the swivel-loop and chains for securing guys and the like.

A is a'pointed pin or spike, to the lower point of which is attached a gimlet screw thread, B. A short distance above said gimlet-screw is attached a spiral bladed wingplate, C, of a diameter about three times that of the screw-spiral. The point of entrance for said wing-plate is on opposite side of the top termination of the gimlet-screw.

To the top ofthe pin A is placeda swivel- A loop, D, the upper arms havings eyes, into` which are fixed chains or cords E, to which may be attached guy ropes or braces whenever the said anchors are used for securing guys or braces. The top end of the pin A terminates with a square tapering end, upon when forcing it intothe ground. The manner of inserting this anchor into the which a key. is placed for turning the anchor ground, as will be r adily seen from the foregoing, is by the application of a key to the top of the pin, and by turning the same with force it is screwedinto the ground, the gimlet-point` cutting its way and drawing downward, the thick-bladed win'g following in like manner.

The anchor may be thus forced down into` the ground as far as may be required, the

HENRY BOEHMKE. GERHD. BOHLKEN.

Witnesses:

E. W. LAIRD, GEO. W. TIBBITTS. 

